1323002302020 has 288 divisors, whose sum is σ = 4817398320000. Its totient is φ = 300544328448.

The previous prime is 1323002302019. The next prime is 1323002302021. The reversal of 1323002302020 is 202032003231.

It is a happy number.

1323002302020 is a `hidden beast` number, since 1 + 3 + 230 + 0 + 230 + 202 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1323002302019) and next prime (1323002302021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1323002301984 and 1323002302002.

It is not an unprimeable number, because it can be changed into a prime (1323002302021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4159606 + ... + 4466354.

It is an arithmetic number, because the mean of its divisors is an integer number (16727077500).

Almost surely, 2^{1323002302020} is an apocalyptic number.

1323002302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323002302020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2408699160000).

1323002302020 is an abundant number, since it is smaller than the sum of its proper divisors (3494396017980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323002302020 is a wasteful number, since it uses less digits than its factorization.

1323002302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306944 (or 306929 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 1323002302020 its reverse (202032003231), we get a palindrome (1525034305251).

The spelling of 1323002302020 in words is "one trillion, three hundred twenty-three billion, two million, three hundred two thousand, twenty".